MalachiteCu2(CO)3(OH)2
Class: Carbonate Hardness: 3.5 - 4 Density: 4.0 Streak: Pale green Lustre: Earthy Habit: Very fine grained coating on other rocks, almost looks like paint. Colours: Copper green | | Crystal System: Monoclinic Cleavage: Perfect Fracture: Subconchoidal Magnetism: None Reaction with HCl: Strong | Identification in hand sample: Colour is primary indicator, as well as habit. Associations: Common in near-surface oxidized portions of copper bearing hydrothermal sulfide mineral deposits. Industrial / ecomonic uses: Used as a minor ore of copper and also has ornamental uses due to vivid green colour. |